From 6590628bd5cd71f870785db0f7c9df6cb31a6f3a Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Wed, 27 Nov 2019 13:01:36 +0100 Subject: [PATCH] crypto: ccp - set max RSA modulus size for v3 platform devices as well commit 11548f5a5747813ff84bed6f2ea01100053b0d8d upstream. AMD Seattle incorporates a non-PCI version of the v3 CCP crypto accelerator, and this version was left behind when the maximum RSA modulus size was parameterized in order to support v5 hardware which supports larger moduli than v3 hardware does. Due to this oversight, RSA acceleration no longer works at all on these systems. Fix this by setting the .rsamax property to the appropriate value for v3 platform hardware. Fixes: e28c190db66830c0 ("csrypto: ccp - Expand RSA support for a v5 ccp") Cc: Gary R Hook Signed-off-by: Ard Biesheuvel Acked-by: Gary R Hook Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman --- drivers/crypto/ccp/ccp-dev-v3.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/crypto/ccp/ccp-dev-v3.c b/drivers/crypto/ccp/ccp-dev-v3.c index 240bebbcb8ac..ae0cc0a4dc5c 100644 --- a/drivers/crypto/ccp/ccp-dev-v3.c +++ b/drivers/crypto/ccp/ccp-dev-v3.c @@ -590,6 +590,7 @@ const struct ccp_vdata ccpv3_platform = { .setup = NULL, .perform = &ccp3_actions, .offset = 0, + .rsamax = CCP_RSA_MAX_WIDTH, }; const struct ccp_vdata ccpv3 = {